1. G. I. Taylor:J. Inst. Metals, 1938, vol. 62, p. 307; Stephen Timoshenko, 69th Anniversary Volume, p. 218, MacMillan Co., N. Y., 1938.
2. J. F. W. Bishop and R. Hill:Phil. Mag., 1951, vol. 42, p. 1298.
3. B. Budiansky and T. T. Wu: Proc. 4th U.S. Nat. Cong. Appl. Mech., 1962, p. 1175.
4. J. W. Hutchinson:J. Mech. Phys. Solids, 1964, vol. 12, p. 11.
5. G. Y. Chin and W. L. Mammel:Trans. TMS-AIME, 1967, vol. 239, p. 1400.